Title: Castle Roogna Series: Xanth Number in Series: 3 (three) Author: Piers Anthony Cover Artist: Darrell K. Sweet Language: English Original Publisher: Del Rey Originally Published: July 1979 Publisher: Del Rey Published: July 1979 ISBN-10: 0345350480 ISBN-13: 9780345350480
Title: Treason Author: Orson Scott Card Cover Artist: unknown Language: English Original Publisher: St. Martin’s Press Originally Published: July 1979 Publisher: Tor Books Published: April 1990 ISBN-10: 0312921098 ISBN-13: 9780312921095 Notes: This book is a revised version of A Planet Called Treason.